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OALib Journal期刊
ISSN: 2333-9721
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基于fvcom模型的珠江河口及其邻近海域的潮汐模拟*
Keywords: 珠江河口,潮汐,数值模拟
Abstract:
？基于fvcom模型,将珠江河网、河口和口外海区作为整体,建立完全三维数值模式,对珠江河口及其邻近海域的潮汐进行数值模拟。采用23个潮位站的潮汐表水位资料对模式进行验证,结果表明模式能比较准确地重现珠江河口的潮汐变化过程。通过对计算结果进行潮汐调和分析,给出了珠江河口区域及近岸海域8个主要分潮的同潮图,讨论了潮波的传播特征。珠江河口潮汐属于混合潮类型,潮型系数介于0.8—1.5。浅水分潮成分很小,最大振幅不超过5cm。对珠江河口的潮差进行统计,给出了珠江河口大潮和小潮期间的潮差大小及分布,大潮时潮差介于2.2—3.1m,小潮时减小到0.6—1.1m。
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